Justification:
This species is uplisted to Endangered from its previous Vulnerable assessment because of its currently scattered populations and small area of occupancy. Hemiphlebia mirabilis is only known from six very small and fragmented populations and several populations are known to have been declining since 2001.

Endemic to Australia. This species is known from only six scattered localities from near
Alexandra, Yea and Wilsons Promontory, Victoria, and from King Island to Mt William
National Park, Tasmania (Trueman et al. 1992, Endersby 1993, Watson
1995).

Known from only six scattered populations. The populations are very scattered. The Alexandra and Yea populations are in Central-east Victoria and have specimens have not been seen since January 2001, when 10 specimens were seen (Hawking and Dunkle unpublished data 2001). Adults were last seen at Wilsons Promontory population is in the south of Victoria, in January 2003 (Smith and Paulson unpublished data 2003). The populations on King Island and two populations near Mt William, Tasmania have not been surveyed since 1995. The adults are very hard to find as they are very small and their metallic green colour allows them to blend in with the surrounding vegetation.

The Yea and Alexandra populations are threatened by lack of water coming onto
the floodplain, due to agricultural practices and river regulation. The Wilsons
Promontory population was severely threatened when the Park staff destroyed the
reeds, which were the H. mirabilis habitat, by burning.